package synchronize.synchronize005;

/**
 * synchronized的重入
 */
public class SyncDubbo2 {

    static class Main {
        public int i = 10;

        public synchronized void operationSup() {
            try {
                i--;
                System.out.println("Main print i= " + i);
                Thread.sleep(100);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }

    static class Sub extends Main {
        public synchronized void operationSub() {
            try {
                while (i > 0) {
                    i--;
                    System.out.println("Sub print i=" + i);
                    Thread.sleep(100);
                    this.operationSup();
                }
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }

    }

    /**
     * 父类子类继承关系的synchronized可以使用
     * @param args
     */
    public static void main(String[] args) {
        Thread t1 = new Thread(new Runnable() {
            @Override
            public void run() {
                Sub sub = new Sub();
                sub.operationSub();
                ;
            }
        });
        t1.start();
    }
}
